South Korea
| Company | Optelcom Inc |
| Contact | Mr Joo-Wan ( John) Jung |
| Address | 3rd Floor, Sungwoo Building 116-5 Nonhyun 2 Dong, Kangnam-Ku SEOUL 135-012 |
| Phone | + [82] 2 543 7050 |
| Fax | + [82] 2 546 4874 |
| Website | www.optelcom.net |
| Company | Optelcom Inc |
| Contact | Mr Joo-Wan ( John) Jung |
| Address | 3rd Floor, Sungwoo Building 116-5 Nonhyun 2 Dong, Kangnam-Ku SEOUL 135-012 |
| Phone | + [82] 2 543 7050 |
| Fax | + [82] 2 546 4874 |
| Website | www.optelcom.net |